Staple extractor



Dec. 15,1925 E CANTIN 1,565,415

STAPLE EXTRACTOR Filed May 11, 1925 Inventor Jmwi (a/aim AttorneyPatented Dec. 15, 1925.

UNITED I sense cit-aria; steam, QUEBEC, CANADA.

Application filed May i1. e25.- serim m. 29,553!

To all whom it may concern:

Be it known that I, ERNEST CANTIN, subjcct of the King of Great Britain,residing at Lemieux, Province of Quebec, Canada,

a have invented certain new and useful Improvements in StapleExtractors; and I do.

hereby declare that the following is a full,

clear, and exact description of the invention,

such as will enable others skilled in the art H to which it appertainsto make and use the same.

The present invention pertains to a novel staple extractor designed toremove articles of this general character from fence posts and the like.

The principal object of the invention is the provision of a device ofthis character which is simple in construction and effective inoperation. In particular, the device is so constructed that movement ofthe operating lever in a given direction clamps the jaws against thearticle to be removed and then extracts it. In the accomplishment ofthis object, the device consists of a bearing piece from which extends afixed jaw and to which is pivoted the operating lever. The movable jawis pivoted with respect to the fixed jaw and attached to the lever so asto be turned when the latter is moved. The

" initial movement of the lever clamps the jaws against the article tobe removed. The

bearing piece also supports a fulcrum which, after the jaws are closed,acts as a fulcrum for the tool as a whole. Continued movement of thelever in the same direction thus causes the device to turn bodily aboutthe fulcrum piece and thereby extract 'the article clamped between thejaws.

The invention is fully disclosed in the following description and in theaccompanying drawings in which- Figure 1 is a perspective view of thedevice;

Figure 2 is a plan view thereof in open position;

Figure 3 is a similar view showing the device in grasping position;

Figure f is a section of the line 44 of Figure 2; and

Figure 5 is a side elevation of the device in use.

Reference to these views will now be made by use of like characterswhich are employed to designate corresponding parts throughout.

The device comprises a bearing member 1 from which extends a fulcrumpiece 2 designed to engage the post 3 from which a staple 4 is to bepulled as illustrated in Figure 5. Opposed to the fulcrum piece is a jawdisc 5 also extending from the bearingmember 1 and lying in a planeparallel to the fulcrum piece. A jaw 6 protrudes from the disc 5 and hasits upper surface raised from the top of the disc as indicated by thenumeral 7 in Figure 3. On the upper face of the disc 5 lies a movablejaw disc 8 pivoted thereto by means of a pin 9. The top of the disc 8 iscoplanar with the top of the enlargement 7 and has a jaw 10 extendingtherefrom and opposed to the jaw 6. The jaw 10 is thickened as indicatedby the-numeral 11 in Figure 5, so that the lower surface thereof lies inthe same plane as the lower face of the disc 5.

To the bearing piece 1 is pivoted an operating lever 12 having a notch13 near the fulcrum thereof. This notch receives a lug 14 formed as anintegral part of the upper disc 8 The operation of the device is asfollows: With the jaws spaced as in Figure 2, the device is arranged sothat the jaws are disposed at opposite'sides of the staple 4 to beextracted. The lever 12 is now pulled downwardly, whereupon the lug 14is drawn away from the post 3 and brings the movable jaw 10 against thefixed jaw 6. The staple is thus locked between'the two jaws. Continueddownward pressure on the lever 12 brings the fulcrum piece 2 against thepost whereby the device as a whole turns about this piece and therebyextracts the staple. It will be seen from the foregoing, that movementof the lever 12 in a downward direction first closes the jaws againstthe staple and then pulls it out.

Vhile a specific embodiment of the invention has been illustrated anddescribed, it is to be understood that various alterations in thedetails of construction may be made Without departing from the spirit ofthe invention as indicated by the appended claims.

Having thus fully described the inven tion, what I claim as new anddesire to protect by Letters Patent is 1. An extractor comprising abearing piece having a fixed jaw rigidly formed therewith andperpendicular thereto, a movable jaw pivotally mounted upon said fixedjaw a lever pivoted to said bearing piece and'having a notch cuttherein, and a lug extending from said movable jaw into said notch.

2. An extractor comprising a bearing piece having a fixed jaw rigidlyformed therewith and perpendicular thereto, a movable jaw pivotallymounted upon said fixed jaw, a lever pivoted to said bearing piece andhaving a notch cut therein, a lug extending from said movable jaw intosaid notch and a fulcrum piece extending from said bearing member andparallel to said jaws.

In witness whereof I have hereunto set my hand.

ERNEST CANTIN.

